Cleary Gottlieb Steen & Hamilton‘s antitrust practice is led by Leah Brannon out of Washington DC, and Heather Nyong’o from San Francisco. They are supported by a team of experienced partners who bring both regulatory and litigation expertise. Key DC partners include Jeremy Calsyn, who brings extensive experience in cartel and leniency matters; Bruce Hoffman, who focuses on merger clearance and complex class actions; and David Gelfand, whose decades of experience inform high-stakes civil and criminal cases. In New York, Joseph Kay brings expertise in cross-border enforcement and technology-related antitrust matters, while in DC, Kenneth Reinker and Daniel Culley continue to play important roles in the team. The group coordinates investigations, litigation, and transactional matters for clients facing the most challenging antitrust issues. Recent highlights include advising Cargill in implementing a DOJ settlement resolving employment information-sharing allegations, representing Cushman & Wakefield and Pinnacle in civil and criminal DOJ investigations concerning algorithmic pricing software, and defending KKR & Co. in a $650 million DOJ suit relating to HSR compliance.

Gibson, Dunn & Crutcher LLP’s Antitrust & Competition practice is co-led by Rachel Brass in San Francisco and Cynthia Richman and Kristen C. Limarzi in Washington DC. Under this leadership, the team handles the full breadth of criminal and civil antitrust matters. Limarzi manages corporate and individual enforcement matters in DC, while Brass and Richman provide strategic oversight of litigation, class actions, and cross-border enforcement. Key DC-based partners include Jeremy Robison, who focuses on global cartel investigations, leniency applications, and complex civil and criminal enforcement matters; and Scott Hammond and Stephen Weissman, who lead criminal investigations and multijurisdictional cartel defenses. The practice represents clients in civil and criminal DOJ investigations, including antitrust inquiries into algorithmic pricing, bid-rigging, and HSR-related compliance. Recent matters include defending RealPage in the first US cases involving algorithmic pricing, securing dismissal of a California antitrust suit against UBS, and representing multinational clients in multijurisdictional cartel investigations.

Latham & Watkins ‘s Antitrust & Competition practice is co-led from Washington DC by Michael G. Egge and Lindsey Champlin, with Lawrence Buterman providing senior leadership from New York. The team is noted for its depth of former federal experience and its ability to handle complex cartel defense and conduct investigations alongside broader civil and criminal antitrust matters. DC-based partners anchor the firm’s cartel defense and conduct investigations. Egge and Champlin provide strategic oversight on the firm’s most sensitive cartel matters, leveraging deep experience to advise on a full spectrum of complex antitrust issues. Marguerite Sullivan brings deep experience representing clients in civil and criminal enforcement matters, including bid-rigging, algorithmic pricing, consent decree investigations, and follow-on litigation. From New York, Buterman plays a central role in defending corporations and executives in criminal cartel investigations, including price-fixing, bid-rigging, market-allocation, and algorithmic pricing matters, and is regularly involved in leniency assessments and negotiations with US prosecutors. Elizabeth Prewitt supports major cartel and conduct matters through follow-on class actions and antitrust compliance counseling. The San Francisco office provides additional depth in complex cartel and antitrust litigation. Belinda Lee, Niall Lynch, Ashley Bauer, and Brendan McShane handle criminal cartel investigations, parallel civil proceedings, and multijurisdictional enforcement matters, drawing on prior DOJ experience and extensive trial backgrounds, particularly in matters involving algorithmic pricing and coordinated conduct.

WilmerHale‘s antitrust practice is anchored by a deep bench of talent across the nation. The team is routinely instructed on bet-the-company cartel investigations, complex civil antitrust litigation, and high-stakes regulatory disputes, often involving parallel proceedings before the DOJ, FTC, state attorneys general, and courts across the US. The practice is jointly led from Washington, DC by Hartmut Schneider and Jennifer Milici, with Milici bringing significant trial experience gained as chief trial counsel at the FTC’s Bureau of Competition. Longstanding practice chair Thomas Mueller remains a dominant figure in global cartel enforcement, earning recognition for his work on multijurisdictional investigations and strategic resolutions. David Gringer heads the firm’s New York antitrust practice and is noted for leading high-profile class actions and monopolization disputes, particularly in the education, technology, and energy sectors. The team is further strengthened by recent senior FTC hires and a strong next generation, including Nana Wilberforce in Los Angeles, noted for cartel and internal investigations work. Steven Cherry has retired.

Baker Botts L.L.P.‘s antitrust practice, anchored in Washington DC and led by Paul Cuomo, is recognized for handling high-profile matters across the US and internationally. The team advises clients on complex civil and criminal litigation, as well as DOJ, FTC, and state investigations. Recent high-profile matters include representing Liberty Media and Formula 1 in DOJ and Congressional inquiries regarding Andretti Racing, defending EOG Resources in multidistrict shale oil litigation, and guiding Sun Pharmaceuticals, Taro Pharmaceuticals, and Avenue5 Residential through significant antitrust proceedings. The bench is strengthened by experienced partners including John Taladay, Erik Koons, Stacy Turner, and Jeffrey Oliver, whose expertise spans class actions, criminal and civil investigations, and cross-border regulatory matters.

Davis Polk & Wardwell LLP ‘s US antitrust cartel practice, led by Jarrett Arp in Washington DC, alongside Arthur Burke in New York, handles complex criminal and civil cartel matters across multiple industries. The team represents clients before the DOJ Antitrust Division, FTC, state attorneys general, and international regulators, providing strategic guidance on investigations, leniency applications, and follow-on civil litigation. Recent work includes representing major companies in antitrust class actions, multi-jurisdictional cartel investigations, internal compliance reviews, and high-stakes litigation related to price-fixing and market allocation.

Hogan Lovells US LLP ‘s cartel practice, led out of the Washington DC office by Kathryn Hellings, with key support from Dan Shulak and Melissa Levitt, handles highly complex criminal and civil antitrust matters in the US. The practice advises clients across a broad range of industries, including TMT, life sciences and healthcare, automotive, financial services, infrastructure, sports and entertainment, and consumer goods. Its work covers DOJ and state attorney general investigations, grand jury proceedings, leniency applications, and internal compliance reviews. Furthermore, the firm represents clients in high-stakes civil litigation related to cartel conduct and price-fixing allegations.

Morrison Foerster ‘s Antitrust Practice draws on a deep bench of talent across key US offices and international hubs. Washington DC–based co-chairs Lisa Phelan and Alexander Okuliar lead the group. Phelan is widely recognized for her cartel and criminal antitrust defense work, regularly representing corporations and executives in high-exposure investigations and jury trials, and is valued for her strategic handling of parallel civil and criminal risk. Okuliar, a former senior DOJ official, is known for his command of complex merger reviews, monopolization matters, and cross-border enforcement strategy, frequently coordinating multijurisdictional filings and advocacy. In San Francisco, Eliot Adelson focuses on sophisticated antitrust litigation and global investigations, particularly for technology and platform clients. Washington DC partners Joseph Folio, Megan Gerking, and Rob Manoso bring substantial government-side experience to cartel, conduct, and merger matters, advising clients on enforcement risk, compliance strategy, and trial defense. The team is currently handling a range of significant cartel investigations and related enforcement proceedings across multiple jurisdictions.

O'Melveny’s antitrust practice is co-led by Co-Chairs of the Antitrust and Competition practice, Michael Tubach in San Francisco and Courtney Dyer in Washington DC, both of whom bring decades of experience in civil and criminal antitrust litigation. Tubach is widely recognized for managing complex class actions, DOJ investigations, and high-stakes international matters, while Dyer advises companies on navigating increasingly complex government antitrust investigations and an evolving enforcement landscape. The bench is further strengthened by Peter Herrick in New York, who regularly leads high-profile state and federal investigations and inquiries, and provides strategic guidance on merger challenges and regulatory compliance. Brian Quinn remains a key member of the Washington DC office.

Paul, Weiss, Rifkind, Wharton & Garrison LLP‘s antitrust practice is led from New York by Tee St. Matthew-Daniel, Deputy Co-Chair and former DOJ prosecutor, noted for her global antitrust litigation and investigation work. In Washington DC, David Higbee advises on mergers, government investigations, and complex litigation. Kenneth A. Gallo is a preeminent trial lawyer specializing in cartel and class-action defense, and Djordje Petkoski focuses on multinational cartel investigations, antitrust class actions, and high-stakes civil litigation. The team represents a diverse range of clients, with recent highlights including the defense of Givaudan in DOJ and cross-border class-action matters across the US, UK, EU, and Switzerland; representation of LeFrak in algorithmic price-fixing litigation in New Jersey; securing a dismissal with prejudice for the NHL in a junior hockey antitrust case; and managing ongoing multidistrict litigation for Pioneer concerning alleged shale-OPEC collusion.

Simpson Thacher & Bartlett LLP‘s antitrust practice is led from Washington DC by Sara Razi, Global Chair of the Antitrust and Trade Regulation Practice, and from New York by Peter Guryan. Jeffrey Knox co-heads the firm’s Government and Internal Investigations Practice and advises global clients on high-stakes criminal and civil investigations, including antitrust, FCPA, and securities matters. Abram Ellis focuses on complex antitrust class actions, regulatory clearance, and cross-border trade compliance. The team represents a diverse range of clients, including Tyson Foods, Inc., in a New York Attorney General investigative subpoena regarding meat product price gouging. It also advises national healthcare providers and cybersecurity companies in DOJ criminal antitrust investigations and manages ongoing matters involving multinational financial institutions, global shipping companies, and consumer goods firms. The practice leverages its DOJ and regulatory experience, taking the lead in numerous high-stakes antitrust litigations and investigations. John Terzaken has left the firm.

White & Case LLP maintains a leading antitrust cartel practice, noted for handling bet-the-company cartel investigations, criminal trials, and complex follow-on civil litigation across the United States and globally. The practice is led out of the Washington DC office by Mark Gidley, praised as ‘extremely experienced, responsive and practical’, alongside Rebecca Farrington. In New York, Robert Milne is a key figure in the practice and is noted for leading high-stakes antitrust litigation and class action defense, particularly in matters with significant financial exposure. The leadership team is supported by a strong bench of partners. In New York, Frank Hogue is an experienced antitrust litigator with a particular emphasis on follow-on damages claims and complex civil proceedings. In Boston, Kelly Newman is noted for her work on cartel investigations, merger-related conduct issues, and antitrust compliance counseling, while Chris Curran advises on antitrust litigation and regulatory disputes, with notable experience in technology and life sciences matters.

Arnold & Porter‘s antitrust practice is recognized for its depth and global reach, providing clients with seasoned counsel in cartel investigations, criminal defense, and complex follow-on litigation. The US team, co-led by DC-based Global Head Michael Bernstein, Niels Christian Ersbøll, and C. Scott Lent, offering expertise across a diverse range of industries, including automotive, chemicals, finance, government contracting, and technology. Chicago-based Andre Geverola continues to lead the firm’s cartel investigations, drawing on decades of experience and frequently taking the lead on high-profile, multi-jurisdictional inquiries involving government contractors, financial institutions, and industrial sectors. Geverola also advises senior executives and corporate boards on compliance strategies, risk mitigation, and internal investigations.

Axinn Veltrop & Harkrider‘s antitrust practice is centered in Washington DC, and is led by Michael Keeley, the firm’s Antitrust Practice Chair. The practice is noted for its strength in cartel and government investigations, underpinned by a group of partners with extensive DOJ experience. Tiffany Rider is a standout figure in high-stakes cartel defense and follow-on civil litigation, regularly leading matters involving parallel criminal investigations, treble-damages class actions, and complex settlement strategy. Partners James Attridge and Daniel Oakes are increasingly prominent, advising companies and executives in sensitive price-fixing, bid-rigging, labor-market, and algorithmic-pricing investigations, as well as related compliance and internal reviews. The team manages matters involving overlapping criminal, civil, and multijurisdictional exposure, including public procurement, technology, manufacturing, and real estate-driven investigations.

Kirkland & Ellis LLP‘s antitrust practice is led by Chicago-based partners Daniel Laytin and Christa Cottrell, both of whom bring deep experience in complex civil and criminal antitrust matters. Laytin oversees the firm’s work across a broad range of industries, including material sciences, pharmaceuticals, energy, food, and transportation, frequently handling multidistrict class actions and regulatory investigations. Cottrell is a trial-focused litigator who manages high-profile cases involving price-fixing, wage-fixing, and market allocation, and advises corporate boards and senior executives on compliance, internal investigations, and risk mitigation. The firm represents a diverse array of clients across multiple industries, often coordinating with US authorities and international regulators. James Mutchnik has retired.

Linklaters LLP‘s Antitrust team is led by New York-based Head of US Government Enforcement and Cartel Practice, Douglas Tween, continues to maintain a strong cartel practice, taking the lead on multiple investigations within the US and globally. Tween is further supported by Washington DC-based Adam Lurie, who brings extensive leadership as Head of US Litigation, Arbitration & Investigations. John Eichlin, of the New York office, guides clients through complex multijurisdictional merger, conduct, and compliance matters, with particular expertise in technology, finance, and life sciences.

McGuireWoods LLP‘s Antitrust team, co-led by Chicago partners Amy Manning and Holden Brooks and Richmond-based Brent Justus, is recognized for its work on high-stakes criminal cartel investigations and complex civil antitrust litigation. This leadership is further supported by Chicago-based Angelo Russo and Sarah Zielinski, and Washington DC-based Casey Lucier. The team advises clients across a diverse range of industries, focusing on price-fixing, bid-rigging, wage-fixing, no-poach agreements, market allocation, monopolization, and unfair competition. Recent highlights includes defending healthcare providers in no-poach class actions, representing staffing companies before the Illinois Attorney General, guiding universities in tuition-related antitrust litigation, and advising energy and manufacturing clients in criminal and civil investigations.

Vinson & Elkins LLP ‘s Antitrust team, co-led by Washington DC partners Hill Wellford and Craig Seebald, is recognized for its breadth of work in the antitrust space, covering global litigation and high-profile investigations. Key partners driving the practice also include DC-based Darren Tucker, who is particularly active, and serving as lead counsel, before multiple international competition authorities. The team represents clients across a range of industries and is notable for handling major antitrust cases such as RealPage, Yardi, MultiPlan, Delta Dental, Wanhua Chemical, and Hitachi Astemo, while also serving as lead global counsel for Google in several international investigations and inquiries involving Google’s Android operating system.

Winston Taylor‘s antitrust practice is recognized for its strength in cartel defense, criminal investigations, and complex follow-on litigation. The group is co-led by New York-based Eva Cole and Chicago-based Jim Herbison. Herbison focuses on high-stakes civil and criminal antitrust matters, including price-fixing, bid-rigging, monopolization, and government investigations, leveraging his extensive trial experience in cartel MDLs and related criminal proceedings. Cole is a leading figure in international cartel investigations and multidistrict litigation, advising global companies facing coordinated scrutiny from US and foreign regulators. Also based in New York, Jeffrey Kessler, the firm’s former global Antitrust Practice Co-Chair, brings decades of experience leading landmark antitrust trials and cross-border cartel matters. Chicago-based Michael Mayer is a key figure in major cartel trials and criminal defense, frequently partnering with Herbison on complex antitrust investigations and follow-on litigation, while partner Kevin Goldstein is increasingly visible on federal- and state-level investigations and algorithmic pricing litigation.

Baker McKenzie‘s US Antitrust & Competition practice is noted for its capabilities in cartel defense and enforcement matters. The group is led by Creighton Macy in Washington DC, Global Chair of Antitrust & Competition, whose prior leadership at the DOJ Antitrust Division adds significant depth to the team’s strategic approach to investigations, litigation, and compliance. Macy is supported by a deep bench of experienced partners, including Jeffrey Martino in New York, a go-to advisor on criminal antitrust and cross-border cartel matters, along with Mark Weiss and Ashley Eickhof in Washington DC, who regularly handle high-stakes merger reviews and government investigations.

Milbank’s antitrust practice is noted for its work in high-stakes investigations and enforcement matters before US and international competition authorities. The practice is co-led from Washington DC, by Adam Di Vincenzo, a seasoned antitrust partner with more than two decades of experience advising Fortune 500 companies and private equity sponsors on bet-the-company transactions, DOJ and FTC investigations, and complex cross-border reviews. He is joined by New York-based practice head, Fiona Schaeffer, who plays a central role in major merger investigations and enforcement matters, particularly in the energy, infrastructure, and other highly regulated industries.

Miller & Chevalier Chartered‘s Washington DC–based criminal antitrust and white-collar practice is recognized for its depth of experience in complex cartel and government investigations. The team is led by Kirby D. Behre, leads of the firm’s Criminal Antitrust practice, who is widely regarded for defending companies and senior executives in high-stakes DOJ investigations across highly regulated industries. Andrew Wise leads the firm’s White Collar Defense practice, bringing extensive trial and investigative experience spanning antitrust, fraud, and anti-corruption matters. The group is further strengthened by Ian Herbert, who advises on multi-jurisdictional enforcement and financial crime matters. Lauren E. Briggerman departed the team in February 2026.

Proskauer Rose LLP‘s Antitrust & Competition team, led out of the Washington DC office by Christopher Ondeck and Colin Kass is noted for its handling of high-stakes criminal cartel and antitrust enforcement matters, alongside complex civil litigation. Ondeck and Kass are further supported by fellow DC-based partner Mark Rosman, who finds himself taking lead on multiple federal facing investigations. The firm represent clients across agriculture, pharmaceuticals, energy, technology, sports, and media, advising on price-fixing, bid-rigging, market allocation, and group boycott investigations. The team regularly conducts internal investigations, defends against DOJ and state enforcement actions, and guides clients on compliance programs.

Sheppard‘s antitrust and competition practice is based in its Washington DC office and is led by Leo Caseria and Ann O’Brien, co-chairs of the firm’s Antitrust & Competition Group. The team is noted for defending complex civil and criminal antitrust matters, including cartel, no-poach, wage-fixing, and monopolization claims, as well as high-profile government investigations and class actions. Caseria brings deep experience in bet-the-company litigation and regulatory strategy, while O’Brien leads the firm’s criminal antitrust and cartel work, regularly handling parallel civil, criminal, and agency proceedings